28426023 has 48 divisors (see below), whose sum is σ = 45826560. Its totient is φ = 16904448.

The previous prime is 28426009. The next prime is 28426049. The reversal of 28426023 is 32062482.

It is not a de Polignac number, because 28426023 - 2⁴ = 28426007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28426063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 424236 + ... + 424302.

It is an arithmetic number, because the mean of its divisors is an integer number (954720).

Almost surely, 2^28426023 is an apocalyptic number.

28426023 is a deficient number, since it is larger than the sum of its proper divisors (17400537).

28426023 is a wasteful number, since it uses less digits than its factorization.

28426023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 28426023 is about 5331.6060432106. The cubic root of 28426023 is about 305.1912193360.

The spelling of 28426023 in words is "twenty-eight million, four hundred twenty-six thousand, twenty-three".